Please stop cross posting the same question into multiple places.
I notice you seem to be asking a lot of fairly basic questions about the operation of Moodle - you may want to either read carefully through the dev docs + the existing Moodle code, to get a better feel for how it operates, or you may want to consider employing an experienced Moodle developer to write the code for you (at the moment, you seem to be asking the forums to write all of the code for you - one line at a time).